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Finding the Fourth Proportional to 225,262.13, 310,861.73 and 124,666.61

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Solution

The fourth proportional to 225,262.13, 310,861.73 and 124,666.61 is: 172,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,262.13 : 310,861.73 = 124,666.61 : x
  2. Step 2: Convert to fraction form
    225,262.13/310,861.73 = 124,666.61/x
  3. Step 3: Cross multiply
    225,262.13x = 310,861.73 × 124,666.61
  4. Step 4: Simplify right side
    225,262.13x = 38,754,076,815.19
  5. Step 5: Solve for x
    x = 38,754,076,815.19/225,262.13
  6. Step 6: Final answer
    x = 172,039.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.